Home / 2,653.07-3,979.85-1,009.17

Finding the Fourth Proportional to 2,653.07, 3,979.85 and 1,009.17

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Solution

The fourth proportional to 2,653.07, 3,979.85 and 1,009.17 is: 1,513.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.07 : 3,979.85 = 1,009.17 : x
  2. Step 2: Convert to fraction form
    2,653.07/3,979.85 = 1,009.17/x
  3. Step 3: Cross multiply
    2,653.07x = 3,979.85 × 1,009.17
  4. Step 4: Simplify right side
    2,653.07x = 4,016,340.18
  5. Step 5: Solve for x
    x = 4,016,340.18/2,653.07
  6. Step 6: Final answer
    x = 1,513.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.